Display screen with a graphical user interface



FIG. 1 is a front view of a first image of a display screen with a graphical user interface, showing the new design;

FIG. 2 is a front view of a second image thereof

FIG. 3 is a front view of a third image thereof; and,

FIG. 4 is a front view of a fourth image thereof.

The appearance of the animated image sequentially transitions between the images shown in FIGS. 1 through 4. The process or period in which one image transitions into another forms no part of the claimed design.

The outermost broken lines illustrate a mobile device, which is the environment of the design and forms no part of the claim. The remaining broken lines illustrate a display screen and portions of the graphical user interface that form no part of the claimed design. 

CLAIM The ornamental design for a display screen with a graphical user interface, as shown and described. 